Whatnot is a live-selling marketplace: you go on stream, run auctions or buy-it-now drops, and buyers bid and pay in real time. It has become a serious channel for cards, sneakers, vintage clothing, and collectibles, and its fee structure is simpler than most marketplaces.
But "simple" still needs a calculator, because the fixed $0.30 per transaction hits hard on $1 and $5 auction wins, and because the way live auctions settle prices changes what "fees" really cost you compared with a fixed-price listing.
This guide covers exactly what Whatnot takes as of 2026, works two examples, compares it to eBay, Mercari, and Poshmark, and lists the habits that separate profitable live sellers from busy ones. To run your own numbers, use the free Whatnot fee calculator.
• Commission: 8% of the sold price
• Payment processing: 2.9% + $0.30 per transaction
• Shipping: paid by the buyer; Whatnot generates the label
• Sellers must apply and be approved before going live
• Effective rate: about 11% on a $100 sale, closer to 12.5% on a $20 sale
Verify on Whatnot's fee page — rates and category rules can change.
The Fee Structure: 8% + 2.9% + $0.30
Every sale on Whatnot carries two charges to the seller (as of 2026 — verify on Whatnot's fee page):
Commission: 8% of the sold price.This is Whatnot's cut for the platform, the audience, and the live infrastructure. It applies whether the item sold in an auction, at a buy-it-now price, or via an offer.
Payment processing: 2.9% + $0.30 per transaction. Standard card processing. The percentage scales with price; the $0.30 does not, which is why it matters most on cheap wins.
Add them up and the percentage portion is 10.9%, plus $0.30. On a $100 sale you pay $11.20 (11.2%). On a $10 sale you pay $1.39 (13.9%). On a $2 sale you pay $0.52 (26%). That last number is why one-dollar starts and penny auctions can look great for engagement and terrible for margin.
There is no listing fee, no monthly store fee, and no charge for going live. Whatnot does require sellers to apply and be approved, and some categories have extra eligibility rules.
How Live Auctions Change Your Realized Price
On eBay or Poshmark you set a price and wait. On a Whatnot stream you set a starting bid, a timer runs, and the room decides. That has two effects on what fees actually cost you.
Realized prices are volatile. A hot room with two bidders who both want the item can push a $30 piece to $55. A quiet room at 11pm can let the same piece go for the $1 start. Your fee percentage is fixed, but the base it applies to swings widely, so the honest metric is fees as a share of your average realized price across a stream, not per item.
Volume replaces margin.Most successful Whatnot sellers move many items per hour at lower average prices than they would list at on eBay. That works because the item sells tonight rather than in six weeks, and there is no listing labor per item beyond pulling it into the stream. It also means the $0.30 fixed fee, multiplied by 80 sales in a night, is $24 — a real line item you should budget for.
The practical takeaway: set starting bids that at least clear your cost plus fees on the items you cannot afford to give away, and reserve true $1 starts for filler and engagement pieces.
Shipping and Labels on Whatnot
Whatnot handles shipping in a way that is friendly to sellers: the buyer pays shipping at checkout, and Whatnot generates the label for you based on the weight and size you set for the item. Multiple wins by the same buyer in one stream are typically bundled into a single shipment.
Because shipping is a buyer-paid, Whatnot-generated line item, it does not reduce your commission base the way seller-paid "free shipping" does on other platforms. You still need to weigh items accurately: under-declaring weight can lead to adjustments, and over-declaring inflates the buyer's all-in cost and suppresses bids.
Budget for packaging. Poly mailers, card sleeves, and boxes are your cost, not the buyer's, and on high-volume streams they add up. A few cents per order is fine; a dollar per order on $8 average sales is not.
Giveaways, Promotions, and Hidden Costs
Whatnot streams live and die on engagement, and giveaways are the standard tool for pulling viewers in and keeping them in the room. Giveaways are not a Whatnot fee, but they are a real cost of selling there.
Giveaway inventory.Whatever you give away is inventory you paid for. Track it as marketing spend per stream so you can compare it against the extra bids it generated. Sellers who never measure this often find their giveaways are their biggest "fee."
Giveaway shipping. Depending on how the giveaway is set up, the seller may cover shipping on the giveaway item. Check the current rules before you plan a stream around free items.
Your time.A two-hour stream plus prep and packing is a real labor cost that a fixed-price listing does not have. When you compare Whatnot's ~11% to eBay's ~14%, remember that eBay listings sell while you sleep; Whatnot sales happen only when you are on camera.
Worked Example: $20 Auction vs $120 Sale
Two sales in the same stream. A vintage tee starts at $1 and closes at $20; a graded card sells at a $120 buy-it-now. Buyer pays shipping in both cases.
Commission: 8% × $20 = $1.60
Processing: 2.9% × $20 = $0.58, + $0.30 = $0.88
Total fees: $2.48 (12.4%)
You keep: $17.52
Sale 2: $120 buy-it-now
Commission: 8% × $120 = $9.60
Processing: 2.9% × $120 = $3.48, + $0.30 = $3.78
Total fees: $13.38 (11.15%)
You keep: $106.62
The spread between 12.4% and 11.15% is entirely the $0.30 fixed fee. Push the average sale down to $5 and the effective rate climbs to about 16.9%. That is the number to keep in mind when you build a stream around cheap starts. Try your own mix in the Whatnot fee calculator.
Whatnot vs eBay vs Mercari vs Poshmark
Same two sales, no shipping in the fee base for simplicity. Fee rules as of 2026 — verify each on the marketplace's fee page. eBay and Depop-style platforms that fee the shipping amount will come out slightly higher in practice.
| Marketplace | Fee structure | Fees on $20 | Fees on $120 |
|---|---|---|---|
| Whatnot | 8% + 2.9% + $0.30 | $2.48 (12.4%) | $13.38 (11.2%) |
| eBay | 13.6% + $0.40 (most categories) | $3.12 (15.6%) | $16.72 (13.9%) |
| Mercari | 10% + 2.9% + $0.50 | $3.08 (15.4%) | $15.98 (13.3%) |
| Poshmark | $2.95 under $15; 20% at $15+ | $4.00 (20%) | $24.00 (20%) |
On the fee line alone, Whatnot is cheaper than the three big fixed-price marketplaces at both price points. The catch is the realized price: the same graded card might fetch $120 on Whatnot tonight or $140 on eBay in three weeks, and the extra $20 dwarfs the fee difference. Live selling trades a little price for a lot of speed. Full breakdowns: eBay seller fees, Mercari seller fees, Poshmark seller fees. Every calculator lives at secnd.ca/tools.
Tips for Live Sellers
Know your floor per item. Cost + 11% + $0.30 + packaging is the number a starting bid needs to clear on anything you are not willing to lose money on. Write it on the tag before the stream.
Encourage multi-item wins.Whatnot bundles a buyer's wins into one shipment, but the $0.30 processing fee is per transaction. Bigger baskets and higher averages spread the fixed costs.
Track giveaways as marketing. Log the cost of every item you give away and compare it against average bids in the stream. Cut what does not lift prices.
Do not strand inventory on one channel. Items that did not move on stream should be live on eBay, Mercari, or Depop tomorrow, not sitting in the Whatnot bin until next Saturday. A cross-listing tool with sales sync lets you pull an item into a stream and automatically delist it everywhere else the moment it sells. See best marketplaces for reselling for how Whatnot fits alongside the fixed-price platforms.
FAQ
How much does Whatnot take from sellers?
As of 2026, 8% commission on the sold price plus 2.9% + $0.30 payment processing per transaction. That works out to roughly 11–12% on typical sales and more on very cheap items. Verify on Whatnot's fee page.
Does Whatnot charge listing or monthly fees?
No. There is no listing fee and no store subscription. Fees are charged only when something sells. You do have to apply and be approved as a seller.
Who pays for shipping on Whatnot?
The buyer pays shipping at checkout, and Whatnot generates the label. You pay for packaging materials and, depending on the current rules, may cover shipping on giveaway items.
Is Whatnot cheaper than eBay?
On fees, yes: about 11% versus eBay's 13.6% + $0.40 in most categories. On net proceeds it depends on the realized price, and eBay's larger audience often pays more for the same item. Compare a specific item with the eBay fee calculator and the Whatnot one.
Do giveaways cost anything on Whatnot?
There is no platform fee for running a giveaway, but the item itself is inventory you paid for, and you may be responsible for shipping it. Treat giveaways as marketing spend and measure them.
Is there a Whatnot fee calculator?
Yes — the free SECND Whatnot fee calculator shows commission, processing, and net for any sale price. Sister calculators cover Mercari, Poshmark, and Depop.
SECND drafts listings from photos, pushes them to eBay, Mercari, Poshmark, Depop and more, and delists across every channel the moment something sells — on stream or off. Web and mobile, no per-listing credits.
See the cross-listing app or start free.